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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/heap/incremental-marking.h" | 5 #include "src/heap/incremental-marking.h" |
6 | 6 |
7 #include "src/code-stubs.h" | 7 #include "src/code-stubs.h" |
8 #include "src/compilation-cache.h" | 8 #include "src/compilation-cache.h" |
9 #include "src/conversions.h" | 9 #include "src/conversions.h" |
10 #include "src/heap/gc-idle-time-handler.h" | 10 #include "src/heap/gc-idle-time-handler.h" |
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1017 | 1017 |
1018 double IncrementalMarking::AdvanceIncrementalMarking( | 1018 double IncrementalMarking::AdvanceIncrementalMarking( |
1019 double deadline_in_ms, IncrementalMarking::StepActions step_actions) { | 1019 double deadline_in_ms, IncrementalMarking::StepActions step_actions) { |
1020 DCHECK(!IsStopped()); | 1020 DCHECK(!IsStopped()); |
1021 | 1021 |
1022 intptr_t step_size_in_bytes = GCIdleTimeHandler::EstimateMarkingStepSize( | 1022 intptr_t step_size_in_bytes = GCIdleTimeHandler::EstimateMarkingStepSize( |
1023 GCIdleTimeHandler::kIncrementalMarkingStepTimeInMs, | 1023 GCIdleTimeHandler::kIncrementalMarkingStepTimeInMs, |
1024 heap() | 1024 heap() |
1025 ->tracer() | 1025 ->tracer() |
1026 ->FinalIncrementalMarkCompactSpeedInBytesPerMillisecond()); | 1026 ->FinalIncrementalMarkCompactSpeedInBytesPerMillisecond()); |
1027 double remaining_time_in_ms = | 1027 double remaining_time_in_ms = 0.0; |
1028 deadline_in_ms - heap()->MonotonicallyIncreasingTimeInMs(); | 1028 intptr_t bytes_processed = 0; |
1029 while (remaining_time_in_ms >= | 1029 |
1030 GCIdleTimeHandler::kMinIncrementalMarkingStepTimeInMs) { | 1030 do { |
1031 intptr_t bytes_processed = | 1031 bytes_processed = |
1032 Step(step_size_in_bytes, step_actions.completion_action, | 1032 Step(step_size_in_bytes, step_actions.completion_action, |
1033 step_actions.force_marking, step_actions.force_completion); | 1033 step_actions.force_marking, step_actions.force_completion); |
1034 remaining_time_in_ms = | 1034 remaining_time_in_ms = |
1035 deadline_in_ms - heap()->MonotonicallyIncreasingTimeInMs(); | 1035 deadline_in_ms - heap()->MonotonicallyIncreasingTimeInMs(); |
1036 if (bytes_processed == 0) break; | 1036 } while (bytes_processed > 0 && |
1037 } | 1037 remaining_time_in_ms >= |
| 1038 2.0 * GCIdleTimeHandler::kIncrementalMarkingStepTimeInMs && |
| 1039 !IsComplete() && |
| 1040 !heap()->mark_compact_collector()->marking_deque()->IsEmpty()); |
1038 return remaining_time_in_ms; | 1041 return remaining_time_in_ms; |
1039 } | 1042 } |
1040 | 1043 |
1041 | 1044 |
1042 void IncrementalMarking::OldSpaceStep(intptr_t allocated) { | 1045 void IncrementalMarking::OldSpaceStep(intptr_t allocated) { |
1043 if (IsStopped() && ShouldActivateEvenWithoutIdleNotification()) { | 1046 if (IsStopped() && ShouldActivateEvenWithoutIdleNotification()) { |
1044 heap()->StartIncrementalMarking(Heap::kNoGCFlags, kNoGCCallbackFlags, | 1047 heap()->StartIncrementalMarking(Heap::kNoGCFlags, kNoGCCallbackFlags, |
1045 "old space step"); | 1048 "old space step"); |
1046 } else { | 1049 } else { |
1047 Step(allocated * kFastMarking / kInitialMarkingSpeed, GC_VIA_STACK_GUARD); | 1050 Step(allocated * kFastMarking / kInitialMarkingSpeed, GC_VIA_STACK_GUARD); |
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1239 void IncrementalMarking::IncrementIdleMarkingDelayCounter() { | 1242 void IncrementalMarking::IncrementIdleMarkingDelayCounter() { |
1240 idle_marking_delay_counter_++; | 1243 idle_marking_delay_counter_++; |
1241 } | 1244 } |
1242 | 1245 |
1243 | 1246 |
1244 void IncrementalMarking::ClearIdleMarkingDelayCounter() { | 1247 void IncrementalMarking::ClearIdleMarkingDelayCounter() { |
1245 idle_marking_delay_counter_ = 0; | 1248 idle_marking_delay_counter_ = 0; |
1246 } | 1249 } |
1247 } // namespace internal | 1250 } // namespace internal |
1248 } // namespace v8 | 1251 } // namespace v8 |
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